/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.solr.schema;

import org.apache.lucene.queries.function.ValueSource;
import org.apache.lucene.search.SortField;
import org.apache.solr.search.QParser;
import org.apache.lucene.index.IndexableField;
import org.apache.solr.util.BCDUtils;
import org.apache.solr.response.TextResponseWriter;

import java.io.IOException;

/**
 *
 */
public class BCDIntField extends PrimitiveFieldType {
	@Override
	public SortField getSortField(SchemaField field, boolean reverse) {
		return getStringSort(field, reverse);
	}

	@Override
	public ValueSource getValueSource(SchemaField field, QParser qparser) {
		throw new UnsupportedOperationException("ValueSource not implemented");
	}

	@Override
	public String toInternal(String val) {
		// TODO? make sure each character is a digit?
		return BCDUtils.base10toBase10kSortableInt(val);
	}

	@Override
	public String toExternal(IndexableField f) {
		return indexedToReadable(f.stringValue());
	}

	// Note, this can't return type 'Integer' because BCDStrField and BCDLong
	// extend it
	@Override
	public Object toObject(IndexableField f) {
		return Integer.valueOf(toExternal(f));
	}

	@Override
	public String indexedToReadable(String indexedForm) {
		return BCDUtils.base10kSortableIntToBase10(indexedForm);
	}

	@Override
	public void write(TextResponseWriter writer, String name, IndexableField f)
			throws IOException {
		writer.writeInt(name, toExternal(f));
	}
}
